Byggmästare Anders J Ahlström Holding AB (publ) invests in, owns, and develops listed and unlisted small and medium-sized companies in Sweden and rest of the Nordic region. The company provides maintenance and fine planning services of outdoor environment, and infrastructure and civil engineering services; and real estate services, including recruiting, staffing, and training services. It engages in the sale and rental of life saving and health-promoting products. The company was incorporated in 2013 and is based in Stockholm, Sweden.